[ERROR] Uncaught exception escaped
java.lang.ClassCastException: com.extjs.gxt.ui.client.widget.layout.FormData
at com.extjs.gxt.ui.client.widget.layout.AnchorLayout.onLayout(AnchorLayout.java:93)
at com.extjs.gxt.ui.client.widget.layout.FormLayout.onLayout(FormLayout.java:191)
at com.extjs.gxt.ui.client.widget.Layout.layout(Layout.java:68)
at com.extjs.gxt.ui.client.widget.Container.doLayout(Container.java:252)
at com.extjs.gxt.ui.client.widget.Container.layout(Container.java:343)
at com.extjs.gxt.ui.client.widget.LayoutContainer.layout(LayoutContainer.java:235)
at com.extjs.gxt.ui.client.widget.Container.doLayout(Container.java:259)
at com.extjs.gxt.ui.client.widget.Container.layout(Container.java:343)
at com.extjs.gxt.ui.client.widget.LayoutContainer.layout(LayoutContainer.java:235)
at com.extjs.gxt.ui.client.widget.Container.doLayout(Container.java:259)